AS/400e server 270
124 AS/400e System Handbook
• #7123 DASD Expansion Unit
– #7123 is a concurrent maintenance DASD six-position expansion feature, which may
be ordered to support an additional six disk units (for a total of 12) in the #7104 on the
Model 270.
– Prerequisite: #7104 on Model 270. Two #2763s or one #4748 in Model 270 system
unit.
• #7133 DASD Concurrent Maintenance Cage
– #7133 is a DASD 6-Pack cage that may be ordered for the Model 270 with processors
#2248, #2250, and #2422.
– The #7133 enables disk unit concurrent maintenance and replaces the standard
non-concurrent maintenance DASD 6-Pack cage.
Note: On processor upgrades from #2248, #2250, #2422 to #2252, #2253, #2423, #2424,
RPO, remove the #7133. These processor upgrade paths are “roll-in/roll-out” system
upgrades and the new system unit comes standard with a concurrent maintenance disk
unit cage.
Note: #7133 is a prerequisite for a #7104 on processors #2248, #2250, and #2422.
• #5075 PCI Expansion Tower
– #5156 Redundant Power and Cooling
– See “Expansion Towers” on page 211 for detailed information.
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